Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SYS & ELECTRONICS INC
8100 W FLORISSANT AVE, SAINT LOUIS, MO, 63136
Parent company: ESCO ELECTRONICS CORP
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | 1,1,1-Trichloroethane | Freon 113 (CFC-113) | Methyl ethyl ketone | Total (lbs) | ||
| 1995 | 6,795 | — | — | 6,795 | ||
| 1994 | 15,549 | — | — | 15,549 | ||
| 1993 | 30,666 | — | — | 30,666 | ||
| 1992 | 17,237 | — | — | 17,237 | ||
| 1991 | 49,600 | 8,500 | 6,000 | 64,100 | ||
| 1990 | 65,121 | 15,328 | 4,136 | 84,585 | ||
| 1989 | 86,000 | 41,000 | 11,800 | 138,800 | ||
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.